Golf apparatus and the like



July 13, 192s.

v A. LEVKOWITS GOLF APPARATUS 1WD 'lig LIKE Sunil/11.?

INVENTOR a Si' L "I x IlIPIPIIIIlfllllillfllllillilllillllllllllllillllll Illlllllllllillllllllllllll u A .nu J M u A.LEVKOWITS GOLF APP/ARATUS AND THE LIKE July 13, 192s. 1,591,985

INVENTOR @CLA-ac I @am 322m;

ATTORNEY A. LEVKOWITS GOLF APPARATUS AND THE LIKE July 13 1926.1,591,985

Filed March 27, 1923 4 Sheets-Sheet 5 INVENTOR QM@ ATTORNEY July 13Y926. Y 1,591,985

A.v LEVKOWITS GOLF APPARATUS AND THE LIKE Filed March 27. 192s 4sheets-sheet 4 Q l l l 0000# ...D 71 @Goose vv ATTORN EY Patented .uly13, 1926.

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' ALBERT LEVKOXVETS, OF NEW YORK, N. Y.

GOLF APPARATUS AND THE LIKE.

Application led March 27, 1923.

-My invention relates generally tothe of golf and has specific referenceto a combination ,of apparatus, topographical maps, and protractor withwhich it is posfr sible to produce or simulate conditions on a golfcourse to an extent that a gameof golf may be played in a limited spacewith substantially the same accuracy as it is played on any standardgolf course.

.The invention has for its principal objects to provide, first, aninstrument carrying a regulation golf ball which when projected by ablowfrom a club will cause the instrument to register distance, height anddeflection of flight of the ball; second, a topographical map of anygolf course comprisinga separate sheet for each hole of the course andshowing kall of lll.

the true con- Yditions ofthe course; third, protractoron the arc ofwhich may be calculated a scale corresponding vto the distance, heightand deflection scales on the measuring instrument, suoli .scales beingsubstantially the same as that to which the map itself vis drawn; andfourth, series of devices designed to receive the ball during the game,whereby certain conditions encountered in the course may be effectivelyreproduced, i. e. high grass, sand holes, etc.

rEhe present invention is illustratively eX- empliiied in theaccompanying drawings, in which Tiligure 1, is a plan view of myimproved measuring instrument; Figure 2, is a'longitudinal sectionalview through the same; and Figure 3, is a side elevational view of theouter end of the instrument showing ythe apparatus and scale formeasuring the height of the ball during flight; figure el, is a planview of my improved protractor; .Figure '5, is a View of one of thesheets of the topographical map of the ,colf course showing by way ofexample a few of the possible plays in the game and the manipulation ofthe protractor to determine the playing conditions preceding andsubsequent to each stroke, Figure 6, shows a bof; containing several ofthev devicesvused to receive the ball and to represent the conditions inwhich a ball may be placed during'tne play, i. e. sand traps, high grassetc.; and Figure 7, is a side elevational iew of .the arrangement.l usedto represent high grass, Y .f

i Referring new .to the drawingsand par- Figures 1 to 8, 10 designates aeig ted lioor'platform bracket Serial No. 628,021.

having a forwardly projecting arm EL provided with a vertically disposedbearing surface 11 adjacent its free end; Mounted to swing through aplane substantially at right angles tothe plane of the bracket 10 andabout the bearing 11 is a supporting bracket 12 comprising an annularportion 18 having the central opening to receive the bearing 11 and aradially projecting arm 14 provided with an interiorly threaded socket15. The socket 15 is adapted to receive the threaded end of a tubulardrum 16 which is provided with four longitudinally disposed slots 17 cutthrough longitudinally of the drum and projecting from the outer endthereof to a point about midway of its length. Telescopically supportedin the drum 16 and eX- tensible through the outer open end thereof is asecond tubular drum 18 having its inner end closed and provided withradially projecting lugs 19 which extend through the slots 17 and areadapted to be guided throughout the length of the latter in theoperation of the measuring device to Ineasure the distance a ball willtravel in its flight. The outer end of the drum 16 is exteriorlythreaded to receive an annular collar 20 which prevents the inner drum18 from being drawn outwardly and free of the drum 16. Disposed looselyabout the drum 16 and arranged between the lugs 19 and the collar 20 isan indicatory ring 21 comprising an annular member provided with abeveled forward edge adapted to register with a series of-graduations 22dis posed on opposite sides of the uppermost slot 17, such graduationsbeing separated from each other along the longitudinal axis of the drum16 a distance equal to some general scale to which a map of the golfcourse is laid out, as hereinafter described.

Inasmuch as graduations designated 22 are disposed longitudinally of theaxis of the drums 16 and 18 it will be apparent that any readings takenfrom this scale will be for movement of the drum 18 in an axialdirection which indicates straight outward travel of the ball in itsflight and in order to offer the proper resistance to such movement ofthe drum 18 the inner end thereof having the lugs 19 is provided with aneye 23 which receives one end of a coiled spring 21, the opposite endbeing connected to a plugv 25 received into the end of the drum 16embraced by the socket 15,

The outer end of the drum 18 is provided with an upright. fiatprojection :'26v disposed transversely across the end, the projection QGhaving a curved free end and acentral opening 27 therein to pivot-allysupport a pin 28, which is adapted to project from opposite sides or theprojection 2G, and which projects through slots 29 of U-shaped strap 30.The closed end ottthe strap BOeX- tends over the edge ot the part 26 andis provided with an opening 3l' to receive one end' c-'a string 3;, theopposite end of which is. embeddedin aA regulation golfball 8S, as shownin Figure '2. The stra-p '30k may be adjusted with respect tothe pin 28andthe tree' ends ot the former are' provided with pointers 3% whichmove' through an Aarc on the projection 26 indicating -the relativelic-ight traversedby theballE in' its flight,.the L.. Jeing designatedby suitably spaced radial graduations 35. as shown in Figure "Theadjusted position of the strap 30 with' respect. to the! pin 2S is -heldfixed by a thumb screw 36 which tends to clamp the strapv and thepintogether. 'By means. ot the relatirev cooperation of the parts'justdescribed the distance and height attained by the ball in itslight'rvill be registered uponthe scales or dials: 22' c id respec-`tively.

The'third possible condition which the balln'iay assuine'in its flightis measured by the distance the. line'ot' travel of the ball is.deflected sidexvisezfrom an axial line project'ingtrom the longitudinalaxis or the'instrument. Such a condition is indicatcdby means of anapparatus comprising an upright integral lug 3T carried by the arm 13out theV bracket l2 and a pair ot relatively adjustable plates 38 and39. The plates 38 and 89 comprise discshaped members looselymounted onstep vbearings l1L() and' 4:1 arranged one above'the other onlthe'endot. the arin'lOa and above'the bearing` surface 11. The peripheries `of`the plates coincide with th'e'inner edge otthe' lug 3T and both platesare provided with radially projecting' indicators 4Q, the uppermostplate 39 havingits indicator disposed in the. path ot'tlie lug 3T as itmoves in an anticlockrvise direction val delinite' relation. to thepossible number ot' degrees. of lateral deie'ction o't'the ball init-s'rlight, i. e. such degrees asmay be measuredonfboth sides of theaxis of the instru-A ment'and; indicated on the' dial by zero. Tocounteract inertia oftbe moving*l instrument about itslpivot bearing Il,a pair of adjustyal`;le"springs ir# are disposed on opposite'latral sidesI ot the device. and connected one ot their ends to Vthe rearwardlydisposed race' of a pair of wings 45: integral with the sockel lo, theopposite ends of the springs being attached to nipples 46 which arecapable ot' adjustment over studs 4:7 carried by the tace of the Wallbracket l() and by adjustmentthereot the tension or compression ot thesprings ALT' may be equalized to hold the apparatusinV proper initialposition.

.Referring now to the protractor shown particularly in Figured,Ofdesignates the protractoi"proper which comprises a piece ottransparent material, such as celluloid, having a center openingv 5lto'receive a centering' pin. Thel protractor issen'ii-circularlyshapedand prmided about `its uppermost segment rWith a marginallyprojecting strip 53 extending' on bothsidesV of a' perpendicular centerline projected upwardly from the center opening 51. The strip 53 extendsover an arc Which-is substantially 100 degrecs of the circle about thepoint 5l and which is divided into indicated graduat'ions 54 measuring 5d'efreesy between each, so as to bringl the graduation designated on thesaid perjiendicular line. The periphery or the preti-actor atthegraduation designated 50o projects outwardly along the'perpcndicularline to provide a straight edge 55, the opposite edge of the projectingportion is defined by a gradual curve which connects With the curve oithe strip oadjacent the right end thereof. For convenience in futurereference let the point or opening 51 be referred to the Zero point and'radially dis nosed trom this zero Joint are a series of straightslotted openings 56, one edge'oll each slot being provided with a scale5T. n the present embodiment of the inventionI have shown the protractorbeingdivided bythe slots 56 into six sectors -which gives seven scales5T. rThese scales 5T are-divided into an equal number or gradua` tionsbut in each scale the graduations are spaced apart from each other adifferent distance. The distance between the markings of one scale andIthosev of* another indicate the relative heights the ball must take inits-flight to'niake certain plays, ashereina'fter described.

`The topographical: inap ol the golf course over Which the game isy tobe played is divided into eighteen sheets, each sheet sho\"- ing theplaying course i'or one o't the eighteen holes. Figure 5 she-ws by wayof illustration one ot such sheets, designated (i0, or a course onwhich' is located thev tee G1, thetairway '62, the green G3 and roughG4', and all the hazards such as bunkers 55, sand traps 66, lakes,brooks, out-olbounds"niarkings, etc. The sheets are preferably arrangedin' pad form with each succeeding sheet representing the next hole to beplayed.

In Figure 6, 'TO denotes a bonY in which a section is set apart tocontain material to represent grass7 T1,-a sandv trap T2 and tall grass78. The tall grass 73 may be made by v disposing upright resilientprojections over a limited area of the boX 70, with sufiicient space inwhich to position the ball.

@ther well known devices may be included in the set, such as puttingholes, etc., which `will practically enablev a player to play a game ofgolf in a limited space either in doors or outdoors', exactly as it isplayed on a standard golf course.

The game played with the apparatus just described may be carried out inthe following manner, and it will be understood that while l amdescribing a few of the possible plays over one sheet, or hole, all ofthe other sheets of the course may be played in a similar'manner. Themeasuring instrument which is attached either byk means of the wall orweighted floor platform plate, is in a slack position and ball 33 restsupon improvised tee corresponding to the zero point or tee 61 on the mapor sheet. The protractor 50 is then placed upon the sheet 60 so that theopenings or zero .point l may be made to coincide with the tee 6lwhereupon the push or centering pin 52 is driven into the opening 5l toprovide a pivot about which the protractor 50 may swing. It the course.from the tee 6l to the hole designated 6"?. may require several strokes,and the iirst drive as nearly as can be determined will be overunobstructed ground the exact distance to be traveled by the ball may bedetermined along` the straight edge 55. For convenience let it beassumed that an obstructed course of over 350 yards is presented in`which case the player returns to the ball 33 and makes a drive and theball is projected so as to eii'ect movement of all of the indicators otthe measuring instrument.

When the pull has stopped, the inner drum 1S after being drawn outaxially against the tension of the spring 24C will have returned to itsinitial or zero position, but the indicating ring 2l will remain in itsadjusted position, i. e. at a point on the scale 22 which indicates themaximum elongation ot the spring 24 for that pull, such elongation otthe spring 24 being proportional to the horizontal component of thepulling force, which in turn is directly proportional to the horizontalcomponent of the force with which the ball has been hit. Considering nowonly the forces acting in a plane coincident with the vertical axis ofthe device, any pull on the strap not in axial alignment with the drumswill have a component tending to rotate the strap and such a componentbecomes zero when the strap 30 has rotated about its pivotal center to apoint where these lines coincide. The iinal position ot the strap 30indicates the direction of the pulling force in a vertical plane, andfrom the position of the pointer 3% relative to the dial 35 the exacttrajectory of the ball may be determined. Knowing the distance point andthe angle ot trajec tory along a vertical plane the exact location otthe ball determined by these two components considered may bedetermined. Theretore any reading` ot the dial taken with the reading ofthe elongation of the spring on the scale 22 will correspond to adeiinite trajectory.

`inasmuch as the entire mechanismk tor measuring distance and trajectoryis freely mounted on the bearino` surface l1, the mechanism itself `willbe r'ree to rotate about this bearing, a condition which enables theforces acting on a plane horizontally disposed with respect to the axisof the drums 'i6 and 18 to be indicated. Considering` nov-J only forcesacting in this horizontal plane, any pull on the strap 30 that isnot inthe line from the pointof attachment of the string to the center of thepin 28 will have a component tending to rotate the entire mechanismabout the pivotal center of the bearing surface ll, this componentbecoming zero when the axis ot the mechanism `has moved to a point wherethese lines coincide. rhe rotation ot the lug 37 by this operation tendsto revolve one or the other of the plates and 39 throughA a spaceindicated "along the dial i3 by the position of the indicators 42.Therefore, the readings or" the dials i3 and 35 and the scale 22,subsequent to a drive, gives the horizontal deliection, heioht anddistance ot the flight of the ball.

in order to clearly understand just how certain conditions in the playsot the game are determined it might be well to explain brieiiy just whatthe conditions are in the ordinary regulation game and then to eX- plainfurther how these same conditions are brought about and played by meansof my invention Golf, as it is played outdoors on a golt course, is agame in which a ball is hit from one deiinite point (called the teeingground) to another definite point (called the cup) with clubs of various4shaped heads in the least number of strokes. The playing ground alongwhich the ball is played trom the teeing ground to the cup is one unitot a golf course and is numbered and called hole #1. A golf courseconsists of either 9 or i8 such units or holes.

The playing course, from the teeing ground to the cup, consists ot thefairway7 on which the grass is cut short so that when the ball lies onthe fairway, it can be hit with any club with no resist-ance from thegrass; the rough, which borders the :tairway on all sides, and uponVwhich the grass is not cut and upon which may be trees and bushes orshrubs, and the hazards, The hazards, which may be located either in thefairway or the rough are (l) sand traps or pits which are filled withsand llt) lll

nl in water bunkers or inounds which rise above the surrounding groundto a height ot from one to tenfeet. These hazards are soplacedas to'penalize strokes that, according to the hazards, i. e. (l) are too longor too'short (2) are deflected too much troni the line along which it isdesirable to hit. (3) donothave a suiiiciently great angle of departureor angle of descent of trajectory.

The cup islocated on what is called the green upon Which the grass iscut so short and is so uniform, that a ball may be rolled along it andnot be deflected troni a straight linezexcept by undulations in theground itself. Y

kThe infinite number ot angles dei ture, troni' the angle ot departureot the lov.'- est. ball'that can be hit that will leave the ground, tothe Vgreatest possible angle oi departure, I have divided into sixgroups and any reading of the angle of departure scale on the indicatingdevice will tall into one of these six groups. These six groups l havenumbered in order one to six, number one being tliegroup of the smallestangle of dci'iarture.

I have, for convenience, called a ball the angle of departure ot `whosetrajectorjiy Ja'lls into group l, a height l hall and ball the. angleofv departure -o'f Whose trajiectary falls into .group 2 a height 2 balletc.

Foreach group, the average angle ot departure has beentaken and therelation betrreenthe carr7 and the roll of a ball hit with that angle ofdeparture, has leen obtained; and any ball in angY height 4f froup willbe considered to have the saine rate of carry and'y roll as thatobtained for the average for the group.

Then a vball is hit into the air 'troni one place to: another, ittravels in the air for a certain distance called the carry or tliglit,7and on eoining to the ground again at theendof its carry or tlight,itbounces and then rolls along until it stops. For the purpose of thisgaine it is'necessary to disregard the bouncing and to consider that:rlter the carry, the ball rolls along the groundr until it stops.

A topographical inap 60 is prepared ot an entire golf course. Forconvenience the inap is divided into 9 or 18 sheets (according` as thecourse has 9 or 18 holes) and on each sheetis laid out the playingcourse Jfor one hole. AOn the sheet for each hole Will be locatedaspreviously explained, the teeing ground..theifairway, the'green, thecup. -`,le

vrough and a' l the hazards on that hole. The sand traps'will benumbered With the ininif niuni height ball that can be played to get outof that trap. On either side of the bunkers vWillbe drawn lines for eachheight ball. These lines will bek drawn at a distance troni the. bunkerequal to the niininiuin distance a ball hit with that height niust betroni that bunker in order that the ball shall have attained in the caseot an ascending ball, or still have in the case of a descending ball` asucient height to clear that bunker.

I Will assuine that an;v ball that hits :i bunker on the carry7 will bestopped by the bunker and roll doivn the side to the ground. ln order tohelp justify this assumption, l have cut off the top crown of the bunkertor the reason that a ball hitting that part nia;v bound over.

A ball Will be assunied to have no roll in rough and a ball rolling overa sand trap Will be assumed to fall into that trap.

The strip of the protractor is divided and nun'ibered to correspond tothe deflection dial l5 on the indicating device. The scale is laid outon the perpendicular line of the protracter and represents units otdistance to the saine scale as that to which the inap'is drawn. Havingtheir zero paint a the :fiero point of the scale ot the prot 'actor arelaid out on the nrotractor the s :ales giving the Carr)v tor each heightball to the saine scale as that of the protractor scale.

lYe now proceed to plav the galne as 'liollou's. Referring to Figure 5,the protractor is laid on the inap for the hole, the zero point 5l or'the protractor-scale being placed and pirated bv a pin on the teeingground and the line ot the perpendicular scale designated O-Z, in Figure5, being placed by the player on the line along which he Wants to hit.lin inost cases this will be the straight line to the hole, but it nia)7be expedient in the plavers opinion to play along` soine other linetoavoid hazards. `laving thus placed the protractor 50 the player thenhits the ball and reads the distance and deflection on the indicatingdevice i. e. reading 150 `vards deflection G5. The protractor is thenrotatcd until the line of the scale 54 is at this deliection and 150vards is laid out 0n the scalev point A1. There being no hazards betweenthis point A and the teeing ground, this is the point to which the ballhas been hit. rlie protractor or 50 is then placed with its zero pointat A1 and the line of the protractor on the line along which the playerWishes to hit, and the ball is hit again. The distance and deilectionare again read 125 `vards-deilection G5 and this point is laid out asbefore, but We sec that line troni A1 to A2 lies over rough or longgrass. lli thereto-re tale the height" reading on the indicatingniachineand it is height #3. The protractor is then rotated until the heightscale lies on the line Alu-A2 and at the 125 yard point on the scale Wefind that the end ot the carry is at A3 and in the rough. Since there isno roll in the rough, the ball has coine to rest at A3 atthe end ot thecarry and the next shot is played from the rubber simulation ot theresistance offered to the club head Figure T. rl`he protractor is placedas before at' yl33 yards-deflection 35 height #1.

A3 and the ball is hit again.

Reading 7() yards-deflection 45 height/0 (the ball having been hit ontop so that it does not leave the ground but only rolls). Inasmuch asthere is norollV in the rough that stroke has not advanced the ball andthe next strokeis played from the same place and from the rubbersimulation of Vrough or long grass. The ball is hit again reading 90yardsfdeflection 40 height #4. 7e lay off this distance and deflectionfrom A3 and as the end of carry as obtained from the height #4 scalelies beyond the rough, the peint i4-90 yards distant is the point towhich the ball has been hit. The preti-actor is placed at A4 andthe ballhit again-readliplg e path of. the stroke .4X4-A5 is over a sand trapand getting the carry we see that the carry ends before the sand trapand the ball is therefore in the trap at A6. The sand trap is marked #3and the next shot should be played from the sand box Figure 6v with anumber height of #3. The protractor is Vlaid at A6 and the ball hit.vReading 60 yards-deflection 48V- height #2. This shot is not high enoughand has not advanced the ball out of the trap. The next shot is playedon the same point. Ball is hit reading 163 yardsdeflection (SO-height#3. Laying olf this distanceand deflection A- A7 and get-ting the carryfrom the height #3 scale We see that the yend of the carry lies bet-Weenthe near edge of the bunker and the #3 line on the further side of thebunker. They ball has therefore hit the bunker on the carry and thenextstroke must be played from point A8 Vin the bunker. It must beplayed With a height one greater than of the line number nearest thebunker or height #4. Theprotractor is laid at AS and the ball is hitreading yards-deflection tzi- #2 height. This is not high enough and theshot has not advanced the ball out of the bunker. The next kshot 1splayed again from A8 reading 42 yardsdeflection 68-height #4. Thisclears the bunker and there being no other hazard, the ball is now at A.The protractor is then put at A9 and the ball hit reading 125yards-deflection 40-height #3. Thus pointer A10 lies beyond the brookand from the carry scale for height 3 then see that the carry ends androll starts before the brook 1s reached. Therefore the ball is inthebrook and the next shot is played from the bank of the brook With thepenalty of a stroke for lifting the ball out of the brook. Protractor isput at A11 and ball is hit, reading` 70 yards-deflection (S0-height #2.The brook is carried and there being no other hazards the ball is at A12on the green. The remaining distance from A to the hole is then measuredand a free ball actually hit into a hole from the distance by using anyof the Well known putting devices now on the market. f .Y

The players score for the holeV is therefore l2 plus the number of.strokes it Will take him to hit into a hole from a distance Havingdescribed my invention and its operation what l claim and desire tosecure by Letters Patent is: Y y

l. ln an instrument for registering the flight of a golf ball,telescopically arranged members 4movable relatively of one another adistance proportional to a pulling force exerted by one of the membersthe said members comprising tubular drums arranged one within the other,the outer drum having a series of longitudinal slots cut in its Walls,the inner drum being provided with radial lugs adapted to be guided insaid slots, means disposed between the drums to counteract the pullingforce ofthe inner drum, an indicator ring longitudinally adjustable over`the outer drum, the latter being provided with a scale over which thering is driven to measure the longitudinal movement ofthe inner drum anda golf ball connected to the inner drum toy provide the pulling force.

2. In an instrument for registering the flight of a golf ball,telescopically arranged members movable `relatively of one another adistance proportional to a pullingforce exerted by one of the membersthe said members comprising tubular drums disposed one Within the other,resilient means tending to normally hold the drums contracted the outerdrum having longitudinal guide slots the inner drum being provided Withradially disposed lugs at one end, movable in said slots, a scaledisposed on said outer drum to designate the said pulling force in unitterms, a loosely mounted indicator embracing the said outervdrum andadapted to be moved relatively of the said scale by being engaged by themovement of said lugs and a golf ball connected to the inner drum toprovide the pulling force.

In an instrument for registering the flight of a golf ball,telescopically arranged members movable relatively of one another adistance proportional to a pulling force exerted by one of the members,a golf ball connected to the said one of the said members to provide thepulling force, and means disposed between the said golf ball and themembers to register the trajectory of the llO ball through a planevertically disposedV flight'of a golf-ball, telescopically arrangedmembers movable relatively of oneanother axdistance proportionalto apulling force exerted by one of the members, a'golf ball connected tothe said oneof the members to provide the pulling force, andY meansadapted -to Vregister the direction of -flight ofthe said ball withrespect to a horizontal plane,- said meanscomprising a pivotalsupportdorsaid members, a bracket having a dialadapted to ,rotate aboutsaid support and beingl connected Ato one of the said members,relatively movable plates loosely7 disposed'laxially o'l'said supportand arranged one over vfthe-other, both plates being provided withY indicator-s v proj ecting` therefrom,

and' means carried by lsaid dial and movable i inA anv are to' engage'one or ltheother Vof said indicators to rotate the latter to a degreeequal tothe horizontal displacement of the ball in its flight,substantially as described.

In combination, a measuring instrument ofthe character described aysupporting platefhaving an'upright bearing surface projectingtherefrom, a -supporting- 4bracket pivota'lly 4mounted -on said-surfaceand hav inga dial disposed in anarc and a lug projecting [from a' zerovpoint insaid dial anda socket-disposed at the end thereof, ro-

'tatableindicator plates loosely mount-ed on saidbearmg 'surface andAhaving projections disposed in the paths I-ofmovement of said lug, atubular member attached to said socket-and provided Vwith longitudinalslots, oneof which isy provided with transverse graduations alongits-Walls, a telescopically disposed tubular member having lugs slidablymounted'in said slots, an indicator ring embracing' said irst tubularmember and adapted to be adjusted by engagement with the said lugsprojecting, through said slots, whereby axial movement of the secondwill advance the indicator ring over the said scale, a spring disposedWithin the first member andlconnected to the latter and the othermember, a pivoted'strap mounted on the freey end of said second tubularmember, a ball depending from the closed end o'll said strap,meansadaptcd to connect said strap Witha golf ball, the movement of-saidstrap about its pivot being conlined to a vertical plane With respect tothe axis of the tubular members, a dial carried by the said tree end ofthe second member and disposed on an arc to measure the trajectory ofthe said ball after a hit is made, and means disposed between thesupporting plate and the supporting bracket to maintain ythe balance ofthe deviceon a horizontal plane.

In ltestimony whereof, I'have signed my name -to this specilication this26th day ot' March, 1923.

ALBERT LEV-KOWITS.

